| 摘要 |
<p>Phase 1 of the standard for GPRS (General Packet Radio Service), which is a packet switched data service for GSM and which frequently is used towards Internet, does not support quality differentiation of IP-packets that have the same IP-address. This results in, inter alia, that client applications, which don't have strict requirements on delays, can reduce the quality for delay-sensitive client applications. The invention describes how the IP-packets are arranged to pass a packet filter that restricts the amount of data that each client application is allowed to transmit, by which the user will have possibility to make quality requirements on IP-traffic over Internet. Defining filter functions for a client application means that: the user describes how the IP-packets from a client application are identified; the user decides allowed bandwidth for each client application; the user decides rules for allocation of transmission capacity that a client appication momentarily does not utilise.</p> |
